Glass-feeding apparatus



June 8 1926.

T. c. STEIMER GLAS S FEEDING APPARATUS Original Filed Feb. 12, 1910 .'5Sheets-Sheet l www@ June 8 1926.

T. C. STEIMER GLASS FEEDTNG APPARATUS 1910 5 Sheets-Sheet 2 OriginalFiled Feb. l2,

T. C. STEIMER GLASS FEEDING APPARATUS June 8 1926.

1910f 3 Sheets-sheet :s

Original Filed Feb. l2,

Patented June 8, 19.26;

UNITED STATES "PATENT OFFICE.

THEODORE c. sTEIMER, DECEASED, LATE OE PITTSBURGH, PENNSYLVANIA; EarCHARLES M. STEIMER, ExEoUTon, or zANEsvILLE, OHIO, ASSIGNOE., EY MESNEASSIGNMENTS, To HARTFORD-EMPIRE COMPANY, A CORPORATION 0E DELAWABI,

GLASS-FEEDING APPARATUS.

Original application nled February 12, 1910, Serial No. 543,582. Dividedand this applioatiommd December 31, 1924. Serial No. 759,173\ Substitutefor application, Serial No. 753,890,111ed December The invention claimedin this divisional relates to the art of feeding glass for themanufacture of pressed or blown articles, such as table ware and thelike, the primary objects `being to improve the construction andoperation of the melting furnace to provide for feeding. charges to theforming machines, and to provide means suitableV for .carrying outithese purposes, together with 'other specific improvements which willhereinafter appear.

Referring to the accompanying drawings which are reproductive in part ofthose filed in the original application aforesaid, and which show, inaddition to the features herein claimed, certain matters to be claimedin the aforesaid original application;

Figure l is a central vertical section of afurnace, showing a fullcharge of molten glass therein, also the delivery pot, asinvented byTheodore C. Steimer, and a side elevation of a suitable pressingmachine.

Figure 2 is a partial side elevation and a partial section showing themechanism for measuring the glass and feeding the molds, the sectionbeing taken partly on the line 2-2 in Figure 3;

Figure 3 is a view, partially in section on the line 3-3 of Figure 2,and partially in elevation, of a different view of the same mechanism; y

Figure 4 is a plan view of the glass measuring and feeding pot.

Figure 5 is a side elevation of the melting and pouring furnace. tiltedinto position to entirely empty its charge.

Figure 6 is a detail of the mechanism for operating the tilting of thefurnace, as will be hereinafter described.

First, to briefly explain the general nature of the invention, I referto Figures l and 5. Mounted on a truck I show aframe 25, carrying amelting and delivering furnaceV 30 which is pivoted at 31 and pours outthe glass constantly at a fixed head, by reason of its construction andthrough the agency of the screw 34. The glass flows in an unbrokenstream into the interrupter chamber 45, where, by means of areciprocating interrupter 58 it is divided.

up'into charges which drop through the funnelA 63 (See Figures 2 and 3)into a bearingl 26 and a movable bearing 32 to carry the furnace. essaryto move the furnace are provided for by a shaft 27 driven by a gear 28and ratchet arm 29 Shown4 in detail in Fi e 6 and hereafter described.It is suiiiclent at this point to say, that the furnace may be entirelyremoved by merely disconnect-4 ing the air and gas pipes in the usualway, and lifting the driving link 29a of of its connecting pin on thearm 29. The furnace 30 may be built in any usual construction of ironframing and the outside casing is as customary; but the entire frame andcasing are supported on the fix'ed trunnions 31 at the front of thefurnace, and bearing 32 at the. rear of the furnace engaging 'a movabletrunnioned nut 33 riding on a pivoted screw 34 which has a bearing inthe frame 25 and is rotated slowly and intermittently by gearing 35 and36 from the shaft 27. p l

The interior construction of the furnace is peculiar; the melting pot 37as seen in Figure l is of wedge shape, with vertical sides, sothat asthe furnace is tipped about its pivoting point which corresponds withthe line of the pouring mouth 38, the glass is always poured from thesame level and from exactly the same position inthe All the operationsVnec-- furnace. That is, the pouring point is immovable and the wholebody of the glass moves around it as a center. By this means I amenabled to drain off the entire charge of glass, leaving no residue tomix with a new charge, which would be very detrimental. The raw materialfor the glass may be introduced by lifting oif the top 39. It will beobserved that' the pot 37 is in a reverberatory chamber formed by thepassages 40 and 41, being heated in any convenient way, as by the airand gasburner 42 fedby any convenient form of piping42., l

The pouring of the glass from the furnace 30. accomplished by the .slowrevolution of the machine.

the reciprocating movement of arm 29,- which, as' willbe seen in Figures5 and 6, is provided with a do'g or ratchet 41, moved intermittently andmoved -any desired distance to regulatie the flow of glass, by means oflink 29, engagingan adjustable wrist-pin 42, set 1n a revolvmg wheel 43,geared up, as will be obvious from Figure 5, with the main power shaftP. That is, by attachment to 'a continually rotating element, the dogand circular rack justv described will slowly and .continuously tip thefurnace about its pouring spout as an axis, so as to deliver acontinuousstream of glass at the exact rate required. The adjustment is madewithout stopping The glass is always under the same conditions oftemperature, pressure head, movement, etc., and the entire charge of thefurnace is used up. i

The stream of glass protected by the hood 44, flows into the interrupterchambed 45 shown in more detail in Figures 1, 2, 3 and 4. This chamber45 has the double purpose of housing the regulating pot and interrupter,and of keeping the glass uniformly at the correct temperature. Insidethe chamber 45, I provide a pot 46 having the peculiar'- form shown inFigures 2 and 3, so that a `gas flame introduced thereunder by a burnei`47 reverberates around the pot 46.

Referring to Figures 2 vand 3 especially, it will be understood that theshaft 48 may be connected up as by a gear 49 at the right of Figure 5,with the main power shaft P therein; and on the shaft 48 :is a cam 50which reciprocates an arm 51 pivoted at 52 to any convenient part ofthe. frame of the machine. This arm 51 has a bearing portion 51a, whichis adjustable in position by screw 51h, soy as to regulate the throw ofthe connected vertical reciprocating link 53, imparting motion to aframe 54 which slides in a vertical gude 55. On this frame theinterrupter stopper is mounted with various adjustments as shown, bymeans of the supporting arm 56 having a ring 57 to hold the interrupterstopper 58. This stopper has aconical end which just fits a conicaloutlet 59 in the .pot 46, so that when the stopper is down it approachescloser to the surface of the opening 59 and stops the flow of glassthrough the same.

The pot 46 of the interruptor is seated on Lan upwardly projecting boss60 in the interrupter chamber 45` and this boss is provided with severalradial slots 61 through which a fine flame constantly plays under theoutlet of the opening 59.

It will be understood that the volume of .the flame is sufficientlylarge to reverberatc regular pulsations, the motions of the. stopper 58are timed correspondingly and carefullyA adjusted in extent so that.thesame amount ofglass which flows into the pot 46, also flows out eachtime the interrupter is lifted to supply the molds. Thus the level ofAglass in the pot remainsconstant, which mcansthat the head or pressureat the outlet is always the same, and the temperature conditions beingalso constant, the same charge of glass at the same consistency isinvariably fed to the molds` It will be noted that the chamber 45 andthe pot 46 constitute a glass-passing member or spout through which,when the device is in operation, glass is constantly passing from themelting compartment or furnace 30 to the feed orifice 59 in the pot.;that the ,side and end walls of such pot are enveloped in flame orheated gases from thejburner 47, which, (except for such portion as mayescape by the openings 61) are confined around the `ot by the channelaround the same former? walls of the chamber 45, that from the burner 47g the flame or gases (as shown by the arrows in Figure 2), after passingfrom one end of the chamber under and around the side walls of the potin one direction, pass up linto the space over the pot through the space45a at the opposite end thereof, and thence flow back over the surfaceof the by the side, end, and bottoml thus serves as a stack for suchchamber, and thatsuch gases, as stated, aidin modifying the temperatureof glass, and keeping the glass in the pot uniformly at'the correcttemperature..

No claim 'is made in this application as to any matter -dsisclosedherein, except to the means for heating the chamber 45, and partscontained therein, and parts necessary for the operation thereof,broader claimsand claims on other features being reserved for theaforesaid original application, or for other divisions thereof.

What is claimed as the invention of THEO- Donr. C. STEIMER is v' 1. Themethod of delivering glass from a source of supply through a spout,which comprises flowing a temperature modifying medium around and incontact with the walls of said spout, and then delivering such fluidinto the spout interior above the glass line.

2. A spout for delivering viscous glass from a furnace comprising a bodyportion with a delivery aperture therein, anda channel in the wall ofsaid body portion for the circulation of a temperature influencingmedium, said channel emptying such medium vinto the space above theglass in said spout.

3. In a spout for feeding viscous glass from a furnace and having adischarge outlet therein,side walls, a substantially vertidio{caicon'duit in @ich` Side wan .fof 'deiivernig a temperature modifyingmedium to the in terior of the spout above the glass level, and

means for supplying such temperature modif- 1' O .4A Ap aratus f''comprising' a 'melting compartment, `'a glass-- fyinglmedium to saidconduits.

n spoutstructure for delivering viscous glass, a glass trough, a.U-shaped chanone lend .havin-g a downwardly. opening diss ture modifyinmedium,.the vertical legs of 'for 4conductin `heating-gases from saidburnerupwar y in contact with the4 side walls of s a-id member, andforemptying said,- a -g'fases'ntosaid member vabove the glass line, jand a chimney above said glass passingnel member forthe reception of atemperasaid U-sha e channel member extending upwardly t roughthevertical side walls of said spout and passin through the sides of thespout above the g ass line for the deliv' eil'y of said medium into thespout above the g ass. v

5. In a spout for delivering viscous Glass.

from a furnace, a channel in the wall of the out for delivering a vtemerature modifying fluid into the interior o said spout above the glassline, said channeldirecting the duid first in one direction and then inanother.

6. Apparatus for feeding molten glass,

comprising a glass passing member having 4an outlet throu h which glassis delivered,

and means for owing a temperature-modifying medium in contact with saidmember,

and for delivering such medium into the interior of said member abovethe glass line.

' perature modif ing fluid -in` contact with. $5

7. Apparatus for feeding molten' glass, comprisng a meltingcompartment,a glass passing member receiving glass therefrom at one end, and havinga discharge outlet at the other, and a channel for conducting temsaidmember, t e said channel being arranged to empty said fluid into thespace above the glass in said member.

- 8. Apparatus for feeding molten glass,

comprising a melting compartment, a glass passing member-receivingvglass therefrom at onel end, and having adischarge outlet at the other,and means for conducting heating A gases upwardly in contact with thesides of said-member and for emptying said gases into said member abovethe glass line.

9. Apparatus for feeding molten glass, comprising a` meltingcompartment, a glass passing member receiving glass therefrom at one endand having a discharge outlet at the other; a substantially verticalconduit for conducting temperature-modifying fluid in- 'contact withthesides of said member, and

:gases therefrom;

foriemptying" gasesfinto' member l ing -Suh tr1p-erature-fmodifying.medium to Saldconduia A A charge outlet 'at lthe other,a burner, meanscomprisingv a -glassm'elting rnac'e, a glasse-glass line," and-means,for'supp-ly-v 4 passing' member receiving 'g'glassl therefrom at -oneend and having a downwardly o ening discharge outlet near the other end,a urner arranged to introduce heating gases into the interior of saidglass-passing member near its discharge end, means for removing heatinggases from said glass melting furnace,

and independent means for removing heating gases from said glass-passingmember near its glass-receiving end.

12. Apparatus forfeeding molten glass, comprising al glass meltingfurnace, a cov' ered feedingv chamber havin its interior se arated fromthe interior o said furnace'1 said feeding chamber being arranged to refceive molten glass from said furnace and having a downwardly directeddischarge outlet, a movable implement extending through the cover ofsaid chamber for controlling the discharge of glass from said outlet,means for introducing heating gases into said furnace, separate andindependent means for introducing heating gases into the interior ofsaidA feeding chamber, means for;

removing heating gases from said furnace, and se arate' means forremoving heating gases rom said feeding chamber independently of themeans for removing heating.V

'gases from said furnace. .A In testimony whereof I hereunto ailixmy.

signature this 24th day of December,

CHARLES M. s'iiiiiiiiim';A Ewecutor of Theodore 0'. Stez'mer, decayed.

